/// <summary>
/// 判断一条Polyline是否完全位于矩形盒内
/// </summary>
/// <param name="polyline"></param>
/// <param name="box"></param>
/// <returns></returns>
public static bool IsPolylineCompleteInBox(MyMultiPolyline polyline, MyRectangle box)
{
int sPointCount = polyline.PointCount;
for (int i = 0; i < sPointCount; i++)
{
MyPoint pointXY = ETCProjection.LngLat2XY(polyline.Points[i]); //投影坐标系下的坐标
if (IsPointInBox(pointXY, box) == false)
{
return(false);
}
}
return(true);
}
/// <summary>
/// 返回一个副本
/// </summary>
/// <returns></returns>
public MyMultiPolyline Clone()
{
MyMultiPolyline copy = new MyMultiPolyline();
copy.polylineCount = this.polylineCount;
copy.selected = this.selected;
for (int i = 0; i < this.points.Count; i++)
{
copy.points.Add(new MyPoint(this.points[i].X, this.points[i].Y));
}
copy.firstIndex = new int[this.firstIndex.Length];
for (int i = 0; i < this.firstIndex.Length; i++)
{
copy.firstIndex[i] = this.firstIndex[i];
}
return(copy);
}
/// <summary>
/// 添加折线
/// </summary>
/// <param name="geo">指定空间对象</param>
/// <returns>是否成功添加</returns>
internal override bool AddGeoObj(object geo)
{
try
{
MyMultiPolyline l = (MyMultiPolyline)geo;
if (polylines.Count == 0)
{
l.FID = 0;
}
else
{
l.FID = polylines[polylines.Count - 1].FID + 1;
}
polylines.Add(l);
//调整minx,maxx,miny,maxy
if (l.MaxX > this.maxX)
{
this.maxX = l.MaxX;
}
if (l.MinX < this.minX)
{
this.minX = l.MinX;
}
if (l.MaxY > this.maxY)
{
this.maxY = l.MaxY;
}
if (l.MinY < this.minY)
{
this.minY = l.MinY;
}
return(true);
}
catch (Exception)
{
return(false);
}
}